US3089118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Passive sonar detection and bearing system
Assignee: Unisys Corp
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Filing: 1960-10-10
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Granted: 1963-05-07
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Expires: 1980-10-10
Abstract
No abstract record available.
Inventors
- 👤 Harold C Baumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:53
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/80; G01S3/802; G01S3/8027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A PASSIVE SONAR DETECTION AND BEARING SYSTEM COMPRISING A PLURALITY OF SOUND TRANSDUCERS, SAID SOUND TRANSDUCERS BEING ARRANGED IN PAIRS WITH SAID PAIRS BEING DISPOSED AT A 90* RELATIONSHIP WITH RESPECT TO EACH OTHER, A RADIO FREQUENCY OSCILLATOR, A MODULATOR CONNECTED TO EACH PAIR OF TRANSDUCERS AND SAID OSCILLATOR, A GONIOMETER HAVING FIELD COILS CONNECTED SEPARATELY TO SAID MODULATORS AND A MOTOR DRIVEN SEARCH COIL, A DEMODULATOR CIRCUIT COUPLED TO SAID SEARCH COIL AND A CATHODE RAY TUBE HAVING BEAM CONTROLLING COILS ROTATABLY DISPOSED THEREON AND ELECTRICALLY CONNECTED TO SAID DEMODULATOR CIRCUIT, THE COILS IN THE CATHODE RAY TUBE BEING DRIVEN IN SYMCHRONISM WITH SAID SEARCH COIL.
Claim 2
Dependent Claim
107 words
A PASSIVE SONAR DETECTION AND BEARING SYSTEM COMPRISING A PLURALITY OF SOUND TRANSDUCERS, SAID SOUND TRANSDUCERS BEING ARRANGED IN PAIRS WITH SAID PAIRS BEING DISPOSED AT A 90* RELATIONSHIP WITH RESPECT TO EACH OTHER, A RADIO FREQUENCY OSCILLATOR, A MODULATOR CONNECTED TO EACH PAIR OF TRANSDUCERS AND SAID OSCILLATOR, A GONIOMETER HAVING FIELD COILS CONNECTED SEPARATELY TO SAID MODULATORS AND A MOTOR DRIVEN SEARCH COIL, A DEMODULATOR CIRCUIT COUPLED TO SAID SEARCH COIL AND A CATHODE RAY TUBE HAVING BEAM CONTROLLING COILS ROTATABLY DISPOSED THEREON AND ELECTRICALLY CONNECTED TO SAID DEMODULATOR CIRCUIT, THE COILS IN THE CATHODE RAY TUBE BEING DRIVEN IN SYMCHRONISM WITH SAID SEARCH COIL.
References Cited (Backward Citations)
US2502447A
Cited
US2808583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |